State why most biologists consider RNA to be life's first coding system.

What are major goals of the therapeutic management of juvenile rheumatoid arthritis? 1 To prevent joint discomfort and regain proper alignment 2 To prevent loss of joint function and achieve cure 3 To prevent physical deformity and preserve joint

The build-up of toxic materials in the tissues of animals is known as

a student does experiment for science fair to study with the temperatures affect the timing of a cricket chirps this

Which feature is unique only to birds? being an endotherm having the ability to fly having feathers laying eggs

What is the properties of genetic material?

The process that allows for genetic diversity in population is Sexual reproduction Asexual reproduction Cloning Extinctions

A new, sixth global mass-extinction event appears to be occurring on earth today. the most likely explanation for the dramatic loss of species is

What must happen to pyruvate before it can enter the kreb's cycle? explain.

Select all that apply. Over time plants and animals have developed defenses against being eaten. What are some examples of these defense mechanisms?

If you were an electron, and your home town was your nucleus, what would you need to do in relation to your home town to emit light (release energy) ?